Sash-fastener.



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UNITED STATES ATENT OFFICE.

CHARLES S. WHIPPLE,

OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO HORACE C.

NICHOLS, OF BROOKLINE, MASSACHUSETTS.

SASH-FASTENER.

Specification of Letters Patent.

Patented April 21, 1908.

Application filed June 20, 1907. Serial No. 379,838.

To all whom it may concern:

Be it known that I, CHARLES S. WnIPrLE, a citizen of the Unit-ed States,residing in Boston, in the county of Suffolk and State of Massachusetts,have invented a new and useful Improvement in Sash Fasteners, of whichthe following is a specification.

This invention relates to that class of sashfasteners which are adaptedto hold the upper and lower sashes in a closed position, or to preventthe upper sash when'lowered to a limited extent from being lowered stillfarther from the'outside, or the lower sash when raised to a limitedextent from being raised still farther from the outside, so that thespace between the upper sash and the head of the sash-frame or betweenthe lower sash and the sill cannot be enlarged from the outside unlesssuch space is sufficiently great to allow the sash-fastener itself to bereached from the outside.

The'invention consists of a new and improved device adapted to beapplied to the to of the lower sash and to engage one of the sti es ofthe upper sash, as fully described in detail below, and illustrated inthe accompanying drawings, in which Figure 1 is an elevation showingportions of the up or and lower sashes, with the upper sash owered withrelation to the lower sash, and my device in position. Fig. 2 is avertical section taken on line 22, Fig. 1, looking toward the right.Fig. 3 is a pers ective view of my device, dotted lines slowing portionsof the stiles in the upper and lower sashes.

Similar letters of-reference indicate corresponding parts.

a represents a portion of one of the stiles, and b a portion of themeeting or top rail of the lower sash, and 0 represents a portion of thecorresponding stile and d a portion of the ,meeting or bottom rail ofthe upper sash.

.the plate and the slots, the

wardly extending vertical portion 7c integral with the portion 9 and atright angles therewith, the lower end of said vertical portionbeing bentinward at at under the main portiong at an obtuse angle with the portionk. The upper plate p is flat and has its forward or inner end beveledoff into chisel-shape s, and said plate is rovided with two elongatedslots Z and m ocated centrally and longitudinally therein. A screw 15 isrigid with the main portion g of the lower late or member, and extendsup through t 1e slot Z at a slightly rearward angle with said portion g,and a thumb-nut u is in engagement with said screw above the plate p. Ashort pin 1) extends fromthe ortion g u through the slot m, said slot meing near tlie rear edge of pin and the screw are so arranged that therear or outer .edge of the upper plate extends under the lip k, andagainst the lower plate at the portion where the lip joins the mainportion 9.

This lip is at such an angle that the upper plate can swing from ahorizontal osition on the lower plate to a considerab e angle above it,the limit of its upward movement being determined by the position of thethumb-nut u on the screw t.

When the device has been placed in osition, as illustrated, the flatportion 9 o the lower plate or member lies on the upper end of one ofthe stiles e making a part of the sash, the portion It extends downalong the inner or rear surface of said stile, and the portion nunderlaps the small ledge or shoulder at (Fig. 2) which is found incheck-rail window sashes as commonly constructed.

The upper plate or movable member plies against t e stile c in the up orsash. By reason of the chisel-shaped edge 8, if an attempt is made tolower the upper sash with relation to the lower sash or to raise thelower sash with relation to the u per, the plate or member p is forcedinto t e stile a sufficiently to effectually revent such an attempt frombeing successful, and the looking may be even more effectual by screwingthe nut it against the plate p.

The elongated slots and the pin 1) are for. the purpose of retaining theup er plate with its inner or rear edge under the lip h, whereby saidplate can swing and is practically hinged to the lower plate without theemployment of a pintle and other portions of an ordinary hinge. Moreoverthe swinging member 19 can be easily removed by removing the thumbnut ufrom the screw it. Unless the thumb-nut is screwed with considerableforce against the plate p, said plate rests gently against the uppersash, and will allow said sash'to be raised or the lower sash to belowered. The object of the portions 7c and n is, of course, to preventany upward or outward movement of the lower plate, whereby the device isfirmly held in position, but can be applied and removed without the useof screws or any fastening contrivances.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent is z- 1. The hereindescribed improvedsashfastener, consisting of a lower stationary plate or membercomprising a flat portion adapted to rest on the up er surface of thelower sash, an upwardly and inwardly bent lip at its rear or outer end,and a downwardly extending portion at its inner end adapted to extenddown at the rear of the lower sash and provided with a rearwardlyextending lip at its extreme end for engaging said sash; a swingingupper plate or member the rear or outer end of which extends under thelip at the corresponding end of the lower plate, and the front end ofwhich has an edge adapted to engage with the stile, and the main poi-1tion of said upper plate being provided with a slot; and a screwextending from the lower plate through said slot and provided with asuitable thumbnut,for the purpose set forth.

2. The hereindescribed improved sashfastener, consisting of a lowerstationary plate or member comprising a flat, portion adapted to reston. the upper surface of the lower sash, an upwardly and inwardly bentlip at its rear or outer end, and extending ortion at its inner endadapted to extend own. at the rear of the lower sash and provided with arearwardly extending lip at its extreme end for engaging said sash;

a swinging upper plate or member the rear or outer end of which extendsunder the lip at the corresponding end of the lower late, and the frontend of which has a elhiselshaped edge, and the main portion of saidupper plate being provided. with two elongated slots; a screw extendingfrom the lower plate through one of the elongated slots in the upperplate and provided with a suitable thumb-nut; and a pin extending fromthe lower plate up through the other slot in the upper plate, for thepurpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES S. \Vl ll PPIJE.

itnesses HENRY W. irl nms, M. A; A'rwoon.

